Space Weather Observations, Alerts, and Forecast

Product: 3-Day Forecast - Issued: 2021 May 07 1230 UTC
Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center.

Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 2 (below NOAA Scale levels). The greatest expected 3 hr Kp for May 07-May 09 2021 is 2 (below NOAA Scale levels).

NOAA Kp index breakdown May 07-May 09 2021
May 07May 08May 09

Rationale: No G1 (Minor) or greater geomagnetic storms are expected.

Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-16 over the past 24 hours, was below S-scale storm level thresholds.

Solar Radiation Storm Forecast for May 07-May 09 2021
May 07May 08May 09
S1 or greater1%1%1%

Rationale: No S1 (Minor) or greater solar radiation storms are expected. No significant active region activity favorable for radiation storm production is forecast.

Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for May 07-May 09 2021
May 07May 08May 09
R3 or greater1%1%1%

Rationale: No R1 (Minor) or greater radio blackouts are expected. No significant active region flare activity is forecast.

Space Weather Overview


Space Weather Images and Information (excluded from copyright) courtesy of:
NOAA / NWS Space Weather Prediction Center   Mauna Loa Solar Observatory (HAO/NCAR)   SOHO (ESA & NASA)

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